It was back in 2016. Our founder, Mr. Ari Piispanen saw in a local newspaper that local university professors went to Germany to see how CO₂ was captured from flue gases in a factory. Ari called the professors, “Hey, why are you capturing CO₂ from flue gases when you could do it directly from the air?” The professor replied, “Well, there’s not really a competitively priced equipment for that,” and Mr. Piispanen said, “What if I could deliver it to you!” and that’s what he did. In 2017, we had two pilots. Then with co-founder Dr. Pasi Vainikka, he found out that, the capture cost is hundreds of euros/ton when the sales price is tens of euros/ton, not kind of profitable. Mr. Piispanen had another company making indoor air purifiers. He combined these two ideas – capturing CO₂ from building ventilation, and increasing peoples’ performance in buildings as CO₂ is proven to lower our cognitive function. We planned to sell this as a service at $1-2/day/person and that was the starting point.